{"project": {
"benefits": "The most immediate opportunity for the tools that will be developed under this SBIR is to assist NASA and its contractors in performing design trade studies of large mass-efficient deployable solar array systems. NASA has recently awarded two contractorsATK and DSSPhase I contracts to advance their concepts through hardware development and verification testing. One design will move forward to a multiyear Phase II flight demonstration program. The tools that will be developed under this SBIR will allow rapid design trade studies of these systems to be carried out by NASA and the manufacturers so that the designs can be optimized for critical performance requirements such as deployment reliability, stiffness, strength, and control. These studies will allow a more complete exploration of the design space and substantially reduce risk in expensive hardware manufacture and testing on these and future deployable systems. Additional areas of expressed interest for NASA include using the tools for control-structure interaction studies of structures with flexible components as well as simulating thermal-gradient effects on the structure. Control-structure interaction is important for a wide variety of NASA interests, one of which is attitude control. Using a flexible structure in the simulation of the control system dynamics will greatly enhance the accuracy of simulations and provide valuable insight into the actual performance of the control system.